» Family Ephemerellidae (Hendricksons, Sulphurs, PMDs, BWOs)
3 genera aren't included.
This is page 28 of specimens of Ephemerellidae. Visit the main Ephemerellidae page for:
- The behavior and habitat of Ephemerellidae.
- 37 underwater pictures of Ephemerellidae.
Pictures of 271 Mayfly Specimens in the Family Ephemerellidae:
Attenella margarita (Little Western Blue-Winged Olive) Mayfly Nymph
View 7 PicturesNotes from the microscope on the ID: Maxillary palp (
Palp: A long, thin, often segmented appendage which can protrude from certain insect mouth parts such as the maxillae. Also known as the < />palpus.) is present, distinctly 2-segmented, but very small. Gills on segment 4-7. This specimen has some unfortunate damage to the abdomen, but it's the only one I found in my sample.
The palp on the maxilla of an Ephemerella
nymph (detached and photographed under a microscope) is highlighted in red here.